Radiator brush



Jan. 7, 1941. I E. ONXTCH RADIATOR BRUSH Fil ed Oct. 12, 1939 i W 4 .u ggzigzggg 4U 2;:.g ggg w w E 5;

a a 1 2T Patented Jan. 7, 1941 UNITED STATES PATENT OFFICE Claims.

This invention has for an object the oonstruc tion of a radiator brush which is characterized by a pair of longitudinal strips supporting a plurality of projecting bristles forming the brush m proper, and themselves continuing to form the handle for the brush.

Still further the invention proposes to so arrange the bristles along the sides and the top end of the longitudinal strips that either side of the brush may be used, as desired. Another object of this invention resides in the provision of means whereby when desired the bristles from one side of the brush may be extended upwards in alignment with the bristles of the other side, and so the length of the bristle portion of the brush may be increased.

Still further the invention proposes the construction of a brush as mentioned which is simple and durable and which may be manufactured and sold at a reasonable cost.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawing, and to the appended claims in which the various novel features of the invention are more particularly set forth.

In the accompanying drawing forming a material part of this disclosure- Fig. 1 is a perspective view of a radiator brush constructed in accordance with this invention.

Fig. 2 is a horizontal sectional view taken on the line 2--2 of Fig. 1.

Fig. 3 is a horizontal sectional View taken on the line 3-3 of Fig. 1.

Fig. 4 is a side elevational view of a radiator brush constructed in accordance with a modification of this invention.

Fig. 5 is a horizontal sectional view taken on the line 5'5 of Fig. 4.

Fig. 6 is a fragmentary enlarged detailed view of the upper portion of Fig. 4.

Fig. '7 is an elevational view similar to Fig. 6 but showing the parts in a different position.

Fig. 8 is a horizontal sectional view taken on the line 8-8 of Fig. 4.

Fig. 9 is an end elevational view looking in the direction of the line 9-9 of Fig. '7.

The radiator brush according to this invention includes a pair of longitudinal strips I0 and between which a bristle supporting member I2 is mounted. This bristle supporting member has a plurality of bristles |3 along-the edges thereof extending from the sides and the top ends of the strips I0 and I. One of the ends of each of the strips l0 and H continue into handle portions ||I and respectively. These handle portions are secured together along their edges by soldering, cementing, or the like for forming a unitary'handle.

The strips Ill and H are secured together along their lengths by a plurality of rivets |5 engaged through these parts and spaced from each other along the lengths of the strips l0 and II. These rivets l5 also serve to hold the bristle supporting member |2 firmly in position. The edges IE3 and II of the longitudinal strips H1 and H, respectively, are bent towards each other so as to encase the bristles supporting member I2 and so as to engage the sides .of the bristles l3.

When the brush is used it may be gripped by the handle and the bristle portion may be engaged between the sections of a radiator or between the other closely spaced parts, to dust same. Either side of the brush may be used or both sides may be used simultaneously.

In Figs. 4 to 9 inclusive, a modified form of the invention has been disclosed which distinguishes from the prior form in an arrangement whereby the bristles along one side of the brush may be extended into end alignment with the bristles along the other sides of the brush. More specifically the radiator brush according to this formof the invention includes a pair of longitudinal strips 20 and 2| mounted on a longitudinal bristle member 22, and continuing into the handle portions 29 and 2| respectively. Rivets 23 engage through the longitudinal strips and the bristle member 22 for connecting these parts together as a unit to form a brush back. Bristles 24 project from the bristle member 22 and extend out between the edges of the longitudinal strips 20 and 2|.

Another pair of longitudinal strips 20 and 2| are arranged along the edges of the strips 2|! and 2| and encase another longitudinal bristle member 22. This bristle member has projecting bristles 24 projecting between the edge portions and the strips 20 and 2|. Rivets 23 secure these parts together to form an auxiliary brush back.

A bracket 25 is mounted upon one of the longitudinal strips, as illustrated the strip 20. A semi-circular element 26 is mounted across the top ends of the strips 20, 2|, 2|, and and is movable to a position on the bracket 25. More specifically the semi-circular element 26 has dove-tailed tongues 21 upon its bottom face which engage in corresponding dove-tailed grooves in the top ends of the strips and in the top ends of the members 22 and 22 and in the top portion of the bracket 25. The semi-circular member 26 comprises face plates 26' connected with rivets 23 and supports a bristle member with a plurality of bristles 21 in a semi-circular fashion which normally forms a continuation of bristles between the upper ends of the bristles 24. Small stop elements 28 are mounted upon the front face of the bracket 25 and the faces of the strips 2| and 2| to limit sliding of the semicircular element 26 from the position in line with the bristles 24 to a position directly over the bracket 25.

The bristle members 22 are hingely connected together by a hinge 30 which in its closed position' holds the longitudinal brush backs adjacent each other and which permits pivoting of the members 22 and 22', into end alignment with each other, and in this latter position the longitudinal strips will also be in end alignment with each other. A bolt 3! is slidably mounted upon one of the bristle members and in an extended position is engageable into a keeper opening 32 formed in the other of the bristle members to latch these parts together in end alignment with each other. The bolt 3| is provided with a handle 33 working in slot 32 formed in one of the longitudinal strips so that the handle may be manually gripped to operate the bolt. A leaf spring 38 is secured at one end by a fastening element 31 to the longitudinal strip 20 and extends over a portion of the strip 20' and is provided with a bolt element 39 cooperative with a keeper opening 40 in the strip 2!! to normally hold the hinge 30 in its closed position. It is necessary that the brush always be used in a space wider than the thickness of the bracket 25 ,and the strips supporting the bristles 24.

The operation of the device is as follows:

The radiator brush as shown in Fig. 4 may be used in a manner very similar to that of the radiator brush shown in Fig. 1. However, when it is desired to extend the bristles it is first necessary that the semi-circular element 26 be shifted from its position upon the bristle members 22 and 22' to a position upon the bracket 25. Fig. 9 shows the semi-circular element in this position. The leaf spring 38 may be flexed to remove the bolt 39 from the keeper opening 40. The bristle members 22 and 22 and the longitudinal strips attached to these parts may now be hinged relative to each other so that the bristles of each of the members are in end alignment with each other as illustrated in Figs. 7 and 9.

The handle 33 may now be moved to, engage the bolt 3| into keeper opening 32 for latching the hinged parts in their new positions. The radiator brush is now of a length double the length that it was before and may be used in this condition. When desired the parts thereof may be moved back to their initial positions.

While I have illustrated and described the preferred embodiments of my invention, it is to be understood that-I do not limit myself to the precise constructions herein disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as defined in the appended claims.

Having thus described my invention, what I claim as new, and desire to secure by United States Letters Patent is:

1. A radiator brush, comprising a pair of 1011- gitudinal strips adjacent each other and hingedly connected at their top ends to be movable into end alignment with relation to each other, longitudinal bristle members mounted on the outer edges of said strips, 21. semi-circular element mounted across the top ends of said strips and removable therefrom when said strips are moved into alignment, an arcuate bristle member mounted along the edges of said semi-circular element and in line with said longitudinal bristle members.

2. A radiator brush, comprising a pair of lon gitudinal strips adjacent each other and hingedly connected at their top ends to be movable into end alignment with relation to each other, longitudinal bristle members mounted on the outer edges of said strips, a semi-circular element mounted across the top ends of said strips and removable therefrom when said strips are moved into alignment, an arcuate bristle member mounted along the edges of said semi-circular element and in line with said longitudinal bristle members, said semi-circular element and the adjacent top ends of said strips being provided with inter-engaging projections and grooves for movably holding these parts relative to each other.

3. A radiator brush, comprising a pair of longitudinal strips adjacent each other and hingedly connected at their top ends to be movable into end alignment with relation to each other, longitudinal bristle members mounted on the outer edges of said strips, a semi-circular element mounted across the top ends of said strips and removable therefrom when said strips are moved into alignment, an arcuate bristle member mounted along the edges of said semi-circular element and in line with said longitudinal bristle members, a bolt slidably mounted on one of the bristle members and engageable with another of the bristle members to hold their end aligned positions.

4. A radiator brush, comprising a pair of longitudinal strips adjacent each other and hingedly connected at their top ends to be movable into end alignment with relation to each other, longitudinal bristle members mounted on the outer edges of said strips, 2. semi-circular element mounted across the top ends of said strips and removable therefrom when said strips are moved into alignment, an arcuate bristle member mounted along the edges of said semi-circular element and in line with said longitudinal bristle members, and a latch for holding said bristle members in their positions adjacent each other.

5. A radiator brush, comprising a pair of longitudinal strips adjacent each other and hingedly connected at their top ends to be movable into end alignment with relation to each other, longitudinal bristle members mounted on the outer edges of said strips, a semi-circular element mounted across the top ends of said strips and removable therefrom when said strips are moved into alignment, an arcuate bristle member mounted along the edges of said semicircular element and in line with said longitudinal bristle members, and a latch for holding said bristle members in their positions adjacent each other, said latch comprising a flexible leaf attached to one of the parts and provided with a bolt element engageable with a keeper in the other of the parts.

' ELIZABETH ONITCH. 

